2013 Nova Bus LFS Recall: In the event of a transmission oil cooler failure, transmission fluid may…

NHTSA campaign 18V117000 · Engine and Engine Cooling · filed Feb 17, 2018 · verified Jul 30, 2026

Units reported

Manufacturer

Nova Bus

Risk

Crash / injury

Owner letters

Mailing began Mar 6, 2018

The defect

Nova Bus (Nova) is recalling certain 2013 LFS transit buses equipped with transmission oil coolers. In the event of a transmission oil cooler failure, transmission fluid may mix with coolant that circulates through the passenger compartment heating system. Exposure to transmission fluid may degrade the PEX connectors of the heating system, resulting in hot coolant leaking into the passenger area.

The risk

Leaking coolant could come into contact with passengers, increasing their risk of injury.

Check whether your specific vehicle is affected

Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.

Check VIN on NHTSA →

The fix — what to do

Nova will notify owners, and dealers will replace the PEX fittings with brass fittings, free of charge. The recall began on March 6, 2018. Owners may contact Nova customer service at 1-800-350-6682. Nova's number for this recall is CR4226.

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Affected vehicles

Make	Model	Model years
Nova Bus	LFS	2013

Related recalls

More Nova Bus LFS recalls

Other campaigns involving Nova Bus vehicles

All Nova Bus LFS recalls → · All Nova Bus recalls →

Source: NHTSA recall database, campaign 18V117000 (manufacturer number CR4225). Data last verified Jul 30, 2026.